Table 42.1 -Refer to Table 42.1

Multiple Choice

Table 42.1

-Refer to Table 42.1:
Because the shark rectal gland functions only when ATP molecules are present,what can you infer about the movement of Na⁺,K⁺,and Cl⁻?

A) Movement of these ions from circulation into the rectal gland is an active process.
B) Movement of these ions takes place from a region of higher concentration to a region of lower concentration.
C) These ions move into the rectal gland with their osmotic gradient.
D) The rectal gland is unable to concentrate these ions.